..Carciovascular sysystem

I have learned in this system that the cardiovascular system has three major components include the heart (which is the organ that pumps blood through the system), blood ( a form of connective tissue that has a fluid component called plasma and a variety of cells and substances, and blood vessels ( a network of passageways to transport the blood to and from the body's cells). I have learned that blood vessels can be classified into arteries ( vessels that carry blood AWAY from the heart - which means that the blood carried by the arteries is deoxygenated), the arterioles ( smaller artery ), veins (vessels that carry blood TOWARDS the heart - which means that the blood carried by the veins is oxygenated), venules ( tiniest vessel) and capillaries (where the exchange of nutrients, gases and waste products happened - it was the transition vessels where blood begins its trip back to the heart). Blood is the transport of oxygen. It has two composition - plasma (the yellowish, straw colored liquid ) and formed solid ( include the Red blood cells (RBC) also called as erythrocytes, White blood cells (WBC) also called as leukocytes and Platelets also called as thrombocytes). I have leraned the different parts of the heart and how the blood go tho the different parts of the body.



If I will explain this to someone, I will discuss the three major components of the cardiovascular which is the heart, blood and blood vessels. I will explain the blood and its composition. The blood vessels and the classification of it. I will expalin how the blood go to the different parts of the bosy. From the superior vena cava (blood from head and arms) and inferior vena cava (blood from truk and legs), the deoxygenated blood will pass through the right atrium and will pass through the tricuspid valve because it is a one-way valve. After passing the first valve, the blood is now going in the right ventricle contracts increasing the internal pressure. This pressure closes the tricuspid valve and forces open the pulmonary valve thus sending blood toward the lung via the pulmonary artey. This blood will bacome oxygenated because while the blood is in the lung, the exchange of gases where happen here and then it will return to the left side of the heart. Oxygenated blood returns from the lung via the pulmonary vien and fills the left atrium creating a pressure against the mitral valve. This pressure of returning blood forces the mitral valve open and begins filling the left ventricle. The left ventricle contracts increasing internal pressure. This pressure closes the mitral valve and forces open the aortic valve causing oxygenated blood to flow through the aorta to deliver oxygen throughout the body.


Our teacher in Biology made this lesson easier for us in giving us lot of activities for us to remember the parts and the cardiac cycle. He explains it well and good..

.,The Different System.,

I have learned the different special senses such as sight, sound, taste, and smell. Also the other senses, such as general senses which are scattered throughout various regions of our body - heat, cold, pain, nausea, etc. - the cutaneous senses - touch, heatt, cold, pain- and lastly the visceral senses - hunger, thirst, and the need to urinate and defecate. I've learned also the different parts of our eyes and ears and the function.

If I will explain this to someone, I will draw or show them a picture of the senses. For the eye, I will show the internal and external structure of it and explain the function . For the ear, I will do the same and I will identify the three divisions of the ear which are the external, inner and middle. Not only the sense of sight and hearing but also the other senses. Like taste, touch, smell and etc. And I will explain the different disorders for the eye and ear.

Well, Patrick was the reporter but I'm not there when he's reporting. So, NO COMMENT to his report cause I don't know how he reported it.

.,eNdOcRinE sYstEM.,

I have learned in this chapter that the endocrine system produces and releases hormones into the blood to direct the activities of other body organs. I've learned also the different hormones of the different organs and its function.

If I will explain this to someone, as what I've done before, I will summarize it first and make a concept map. I will show them a picture of our body and the different organs. I'll identify first all the organs and tell the hormones of each. And ofcourse, the functions on how they work or what they do to our body. I will tell all the things I know in this lesson with understandable explanations.

Mikee was or should be the reporter. Because of unexpected happenings, she didn't reported her report..NO MUCH COMMENT!!!!